SLC7A1 and metastatic malignant neoplasm in the lymph nodes: Their interactions, as immunosuppressive signaling, were strongly associated with the presence of tumor and local lymph node metastasis in T2 and T3 samples (Figure 5E), which was confirmed in TCGA cohort, with the high expression of SLC7A1 being significantly associated with lymph node metastasis (Figure 5J).